Leases Lease, Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Operating Lease, Weighted Average Remaining Lease Term	4 years 5 months 15 days	4 years 3 months 25 days
Finance Lease, Weighted Average Remaining Lease Term	8 years 7 months 9 days	5 years 7 months 17 days
Operating Lease, Weighted Average Discount Rate, Percent	4.10%	3.61%
Finance Lease, Weighted Average Discount Rate, Percent	4.64%	3.95%
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Current	Other Liabilities, Current
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Current	Other Liabilities, Current
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Deferred Credits and Other Liabilities	Deferred Credits and Other Liabilities
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Deferred Credits and Other Liabilities	Deferred Credits and Other Liabilities
Entergy Louisiana [Member]
Operating Lease, Liability, Current	$ 14,771	$ 13,554
Finance Lease, Liability, Current	4,870	4,276
Operating Lease, Liability, Noncurrent	39,282	32,588
Finance Lease, Liability, Noncurrent	$ 16,568	$ 14,264
Operating Lease, Weighted Average Remaining Lease Term	4 years 7 months 6 days	4 years 3 months 3 days
Finance Lease, Weighted Average Remaining Lease Term	5 years 4 months 24 days	5 years 3 months 7 days
Operating Lease, Weighted Average Discount Rate, Percent	4.01%	3.24%
Finance Lease, Weighted Average Discount Rate, Percent	3.85%	3.15%
Entergy Mississippi [Member]
Operating Lease, Liability, Current	$ 6,754	$ 6,540
Finance Lease, Liability, Current	3,059	1,974
Operating Lease, Liability, Noncurrent	18,722	17,098
Finance Lease, Liability, Noncurrent	$ 19,602	$ 6,604
Operating Lease, Weighted Average Remaining Lease Term	5 years 4 months 2 days	5 years 3 months 21 days
Finance Lease, Weighted Average Remaining Lease Term	17 years 9 months 25 days	5 years 1 month 24 days
Operating Lease, Weighted Average Discount Rate, Percent	4.08%	3.52%
Finance Lease, Weighted Average Discount Rate, Percent	5.08%	2.87%
Entergy New Orleans [Member]
Operating Lease, Liability, Current	$ 1,681	$ 1,650
Finance Lease, Liability, Current	991	918
Operating Lease, Liability, Noncurrent	4,377	4,217
Finance Lease, Liability, Noncurrent	$ 3,788	$ 3,424
Operating Lease, Weighted Average Remaining Lease Term	6 years 4 months 17 days	6 years 29 days
Finance Lease, Weighted Average Remaining Lease Term	5 years 8 months 23 days	5 years 8 months 19 days
Operating Lease, Weighted Average Discount Rate, Percent	4.02%	3.50%
Finance Lease, Weighted Average Discount Rate, Percent	3.69%	3.04%
Entergy Texas [Member]
Operating Lease, Liability, Current	$ 6,023	$ 5,640
Finance Lease, Liability, Current	1,865	1,654
Operating Lease, Liability, Noncurrent	15,304	11,441
Finance Lease, Liability, Noncurrent	$ 6,849	$ 6,440
Operating Lease, Weighted Average Remaining Lease Term	4 years 5 months 8 days	3 years 10 months 2 days
Finance Lease, Weighted Average Remaining Lease Term	5 years 5 months 26 days	5 years 8 months 1 day
Operating Lease, Weighted Average Discount Rate, Percent	4.43%	3.63%
Finance Lease, Weighted Average Discount Rate, Percent	3.76%	3.07%
Entergy Arkansas [Member]
Operating Lease, Liability, Current	$ 15,514	$ 14,140
Finance Lease, Liability, Current	3,743	2,985
Operating Lease, Liability, Noncurrent	46,211	41,874
Finance Lease, Liability, Noncurrent	$ 13,879	$ 10,508
Operating Lease, Weighted Average Remaining Lease Term	4 years 7 months 13 days	4 years 6 months 18 days
Finance Lease, Weighted Average Remaining Lease Term	5 years 6 months 25 days	5 years 3 months 25 days
Operating Lease, Weighted Average Discount Rate, Percent	4.04%	3.43%
Finance Lease, Weighted Average Discount Rate, Percent	3.77%	2.93%